/* ============================================================================
 * SuperBio Labs · Product Guide CSS
 *
 * Estilos compartidos para guías de uso por producto (/recursos/guias/<slug>/).
 * Print-ready: cover en navy gradient, páginas con section-num + page-head.
 * Inyectar :root { --metabolic: <category-color> } por página para personalizar
 * el color de acento de la categoría (Recovery, Metabolic, Skin, Hormonal, etc).
 * ========================================================================== */

:root {
  --navy-deep: #001450;
  --navy: #0F1F5C;
  --accent: #00d9b2;
  --paper: #F5F5F0;
  --white: #FFFFFF;
  --off-white: #FAFAF7;
  --ink: #0A1628;
  --ink-soft: #3D4858;
  --gray-dark: #5A6573;
  --gray: #8B95A5;
  --gray-light: #C4CCD8;
  --line: #DDE2EA;
  --metabolic: #6B4423;
  --warn-bg: #FEF7E6;
  --warn-border: #A77900;
  --danger-bg: #FEE6E6;
  --danger-border: #C0392B;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Montserrat', -apple-system, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

.reading-shell {
  max-width: 820px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}
.web-toolbar {
  position: sticky;
  top: 0;
  background: rgba(245, 245, 240, 0.95);
  backdrop-filter: blur(10px);
  padding: 12px 24px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  margin: -40px -24px 32px;
}
.web-toolbar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--navy-deep);
  text-decoration: none;
  font-weight: 600;
  font-size: 13px;
}
.web-toolbar .brand img { height: 22px; }
.web-toolbar .toolbar-actions { display: inline-flex; gap: 10px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.web-toolbar .back {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid var(--line);
  padding: 8px 14px;
  border-radius: 100px;
  transition: all 0.15s;
  white-space: nowrap;
}
.web-toolbar .back:hover { background: var(--white); color: var(--navy-deep); border-color: var(--navy-deep); }
.web-toolbar .back-primary {
  background: var(--navy-deep);
  color: #fff;
  border-color: var(--navy-deep);
}
.web-toolbar .back-primary:hover { background: #0F1F5C; color: #fff; border-color: #0F1F5C; }

.page {
  background: white;
  padding: 70px 64px;
  margin-bottom: 24px;
  border-radius: 4px;
  box-shadow: 0 1px 3px rgba(0,20,80,0.04);
  min-height: 1000px;
  position: relative;
  page-break-after: always;
}
.page-num {
  position: absolute;
  bottom: 24px;
  right: 36px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  letter-spacing: 1.5px;
  color: var(--gray);
}
.page-foot {
  position: absolute;
  bottom: 24px;
  left: 36px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  letter-spacing: 1.5px;
  color: var(--gray);
}
.page-head {
  position: absolute;
  top: 24px;
  left: 36px;
  right: 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}
.page-head-left { display: flex; align-items: center; gap: 9px; }
.page-head-left img { height: 16px; opacity: 0.8; }
.page-head-left .ph-brand {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gray);
}
.page-head-right {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gray);
}

h1, h2, h3, h4 {
  font-family: 'Cormorant Garamond', Georgia, serif;
  color: var(--navy-deep);
  font-weight: 500;
  letter-spacing: -0.3px;
}
h1 { font-size: 48px; line-height: 1.05; }
h2 { font-size: 32px; line-height: 1.15; margin-bottom: 16px; }
h3 { font-size: 21px; line-height: 1.25; margin-bottom: 12px; margin-top: 24px; font-weight: 600; }
h4 { font-size: 15px; line-height: 1.3; margin-bottom: 8px; margin-top: 18px; font-weight: 600; letter-spacing: 0; }

p { margin-bottom: 14px; color: var(--ink-soft); }
p.lead { font-size: 17px; color: var(--ink); margin-bottom: 18px; }
ul, ol { margin-left: 22px; margin-bottom: 14px; color: var(--ink-soft); }
li { margin-bottom: 6px; }
strong { color: var(--ink); font-weight: 600; }
em { font-style: italic; }

.kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 14px;
  display: block;
}
.section-num {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-style: italic;
  font-size: 64px;
  color: var(--gray-light);
  line-height: 1;
  margin-bottom: 8px;
  display: block;
}

.cover {
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy) 100%);
  color: white;
  padding: 64px 56px 48px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 32px;
  min-height: 640px;
}
.cover .brand-stripe {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 36px;
}
.cover .brand-stripe img { height: 64px; width: auto; filter: brightness(0) invert(1); }
.cover .brand-stripe-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
}
.cover .cover-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 22px;
}
.cover h1 {
  color: white;
  font-size: 86px;
  line-height: 1;
  font-weight: 400;
  margin-bottom: 24px;
}
.cover h1 em { font-style: italic; color: var(--accent); }
.cover .cover-sub {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: 26px;
  color: rgba(255,255,255,0.85);
  line-height: 1.3;
  margin-bottom: 38px;
  max-width: 620px;
}
.cover .cover-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin: 28px 0 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.15);
}
.cover .stat-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 38px;
  color: var(--accent);
  font-weight: 500;
  line-height: 1;
  margin-bottom: 4px;
}
.cover .stat-lbl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
}
.cover-footline {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}

.callout {
  background: var(--off-white);
  border: 1px solid color-mix(in oklab, var(--metabolic) 28%, var(--line));
  padding: 18px 22px;
  margin: 18px 0;
  border-radius: 8px;
}
.callout .co-kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--metabolic);
  font-weight: 700;
  margin-bottom: 6px;
}
.callout p { margin-bottom: 0; font-size: 14px; line-height: 1.55; }
.callout ul { margin: 6px 0 0 16px; }
.callout ul li { font-size: 13.5px; }
.callout.warn { background: var(--warn-bg); border-color: rgba(167,121,0,0.32); }
.callout.warn .co-kicker { color: var(--warn-border); }
.callout.danger { background: var(--danger-bg); border-color: rgba(192,57,43,0.30); }
.callout.danger .co-kicker { color: var(--danger-border); }
.callout.accent { background: rgba(0,217,178,0.08); border-color: rgba(0,217,178,0.38); }
.callout.accent .co-kicker { color: #00876e; }

table.dose-table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 13.5px;
}
table.dose-table th, table.dose-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
}
table.dose-table thead th {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 1.3px;
  text-transform: uppercase;
  color: var(--gray-dark);
  font-weight: 700;
  background: var(--off-white);
  border-bottom: 2px solid var(--metabolic);
}
table.dose-table td { color: var(--ink-soft); }
table.dose-table td.mono {
  font-family: 'JetBrains Mono', monospace;
  color: var(--navy-deep);
  font-weight: 600;
}
table.dose-table tbody tr:hover { background: rgba(0,20,80,0.02); }

.steps {
  list-style: none;
  margin-left: 0;
  counter-reset: step;
}
.steps li {
  counter-increment: step;
  padding-left: 44px;
  position: relative;
  margin-bottom: 14px;
  color: var(--ink-soft);
}
.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--navy-deep);
  color: white;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.steps li strong { display: block; color: var(--ink); margin-bottom: 3px; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin: 14px 0;
}
.grid-2 .cell {
  background: var(--off-white);
  padding: 16px 18px;
  border-radius: 4px;
}
.grid-2 .cell h4 { margin-top: 0; margin-bottom: 6px; color: var(--navy-deep); }
.grid-2 .cell p { margin-bottom: 0; font-size: 13.5px; }

.post-cta {
  margin: 24px auto 0;
  max-width: 740px;
  padding: 22px 26px;
  background: var(--navy-deep);
  color: white;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: space-between;
}
.post-cta-text { flex: 1 1 320px; min-width: 0; }
.post-cta .pc-kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 6px;
}
.post-cta h3 {
  color: white;
  font-size: 22px;
  font-weight: 500;
  margin: 0 0 4px;
}
.post-cta p {
  color: rgba(255,255,255,0.78);
  font-size: 13.5px;
  margin: 0;
}
.post-cta .pc-btn {
  background: var(--accent);
  color: var(--navy-deep);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 13.5px;
  letter-spacing: 0.4px;
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 100px;
  white-space: nowrap;
}

@media print {
  body { background: white; }
  .reading-shell { max-width: 100%; padding: 0; }
  .web-toolbar, .post-cta { display: none !important; }
  .page {
    box-shadow: none;
    border-radius: 0;
    margin-bottom: 0;
    min-height: auto;
    padding: 70px 64px;
  }
  .cover { padding: 80px 64px; }
  @page { size: letter; margin: 0; }
}